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WHEN NASA MOVES UP HOWARD'S MISSION, HE MUST FACE HIS FEARS - AND BERNADETTE'S DAD, ON "THE BIG BANG THEORY," THURSDAY, MAY 3

"The Launch Acceleration" - NASA reschedules Howard's mission, putting the wedding plans in jeopardy. Meanwhile, Leonard says something surprising to Penny in the bedroom, on THE BIG BANG THEORY, Thursday, May 3 (8:00-8:31 PM, ET/PT) on the CBS Television Network.